Answer:
- B. The constant in the expression is 1/2
Step-by-step explanation:
<u>Given formula for the area of a triangle</u>
<u>Statements to confirm</u>
A. The coefficient of is b.
- False. b is variable, 1/2 is coefficient
B. The constant in the expression is 1/2
C. There is one term in the expression.
- False. There are 3 terms, one constant and two variables
D. There is one variable in the expression.
- False. There are two variables, b and h
<em>Note. </em>
<em>Assumed 1/2 is given in Option B, otherwise all statements are false</em>.
The error is in the second step they subtracted 3 from both sides but it was a 3x, which you can not do.
Correction.
9x+18+3x=1
12x+18=1
12x=-17
x=-17/12
Answer:
false
Step-by-step explanation:
5+2=15÷(3+2)
5+2=15÷5
7=15÷5
7=3
false because they are different
Answer:
x = 2
Step-by-step explanation:
Similar triangles are triangles which have the same shape but not the same size. This means their angle measures are equal but their side lengths are not instead they are proportional. To solve, we will set up a proportion and solve.
A proportion is two equal ratios set equal to each other. We form the ratios by finding corresponding sides (sides which match to each other on both triangles by their position). Out ratios will be one side of the small triangle over the corresponding side on the big triangle as shown below:
.
To solve the proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.